Let A=⎣⎡313131210−21⎦⎤,b=⎣⎡11−1⎦⎤ and W=col(A) PART A) Compute projWb. (Don't compute the projection m
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Let A=⎣⎡313131210−21⎦⎤,b=⎣⎡11−1⎦⎤ and W=col(A) PART A) Compute projWb. (Don't compute the projection m
Let A=⎣⎡313131210−21⎦⎤,b=⎣⎡11−1⎦⎤ and W=col(A) PART A) Compute projWb. (Don't compute the projection matrix; use the fact the columns of A are orthonormal) PART B) Recall that the least squares solution is the vector x^ such that projWb=Ax^ Solve for x^ using the above equation and your answer from part a. (Hint: What does ATA simplify to?)
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